| Customization: | Available |
|---|---|
| After-sales Service: | Yes |
| Warranty: | 1 Year |
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| 1. Shape: Spanner nuts have a unique design with notches, slots, or holes around the perimeter to engage with a spanner wrench. This design allows for precise torque application without damaging the nut or surrounding components. |
| 2. Threaded Interior: The spanner nut has internal threads that match the external threads of the shaft or component it secures. |
| 3. Precision Machining: Yamaha spanner nuts are precisely machined to ensure a tight, secure fit, which is crucial in high-performance applications like marine motors. |
| 4. Non-Conventional Design: Unlike regular hexagonal nuts, the spanner nut's shape prevents it from being removed or tightened using traditional wrenches, enhancing its security. |
| 1. Component Locking: The primary function of the spanner nut is to lock components in place securely. For example, in outboard motors, it is often used to secure the propeller, propeller shaft, or bearing assemblies to ensure that they do not loosen under vibration or high-speed operation. |
| 2. Even Distribution of Torque: The design of the spanner nut allows for even distribution of torque when tightening, which prevents uneven stress or distortion on the components it holds. |
| 3. Prevention of Backlash: In high-performance environments like outboard motors, the spanner nut helps prevent backlash (unwanted movement) of critical rotating components, such as the propeller or gears, ensuring smoother operation. |
| 1. Regular Inspection: Periodically inspect the spanner nut for signs of corrosion, rust, or wear. In marine environments, even stainless steel can experience surface corrosion over time. |
| 2. Tightening to Specified Torque: Always follow Yamaha's specifications for tightening the spanner nut. Over-tightening can cause damage to the threads or surrounding components, while under-tightening can result in loosening during operation. |
| 3. Use Anti-Seize Compound: Applying a small amount of anti-seize compound to the threads can help prevent galling or seizing, especially when dealing with stainless steel nuts and bolts, which can sometimes bind under high torque. |
| 4. Check After Long Periods of Inactivity: If the outboard motor has been inactive for a long time (e.g., during winter storage), inspect the spanner nut before using the motor again. Vibrations or temperature changes can sometimes cause nuts to loosen over time. |
| 5. Clean Threads Before Installation: Ensure that the threads on both the spanner nut and the shaft are clean and free of debris before installation. Dirt or corrosion in the threads can affect how securely the nut can be tightened. |
| 6. Replace Damaged Nuts: If the spanner nut shows signs of wear, damage, or rounding off of the slots or notches, replace it to ensure a secure fit and prevent potential issues during high-speed operation. |
| 1. Loose Components: If the components (such as the propeller or shaft) feel loose or exhibit excess play, this could indicate that the spanner nut is not tightened correctly or has become worn. |
| 2. Difficulty Tightening or Removing: If you find it difficult to tighten or remove the spanner nut using the correct spanner wrench, the threads may be damaged, or the nut may have seized due to corrosion. |
| 3. Unusual Noises or Vibration: Unusual noises, such as rattling or vibration from the propeller or shaft, may signal that the spanner nut has loosened or is not secured properly. |
| Nut | 2-Stroke Power |
| YAMAHA 650-45616-01 PROP NUT | 25HP |
| YAMAHA 647-45616-00 NUT,PROPELLER | 4/5HP |
| YAMAHA 676-45616-01 NUT,PROPELLER | 40HP |
| YAMAHA 664-45384-00 ECROU | 20/25/30HP |
| YAMAHA 688-45384-00 NUT | 25/50/60/70/75/80/85/90/100/115/130/140HP |
| YAMAHA 697-45384-00 NUT | 25/40/48/50/55/60/70HP |
| YAMAHA 6G5-45384-00 NUT | 150/175/200/220/225HP |
| YAMAHA 61N-44146-00 CONNECTOR,SHIFT ROD | 9.9/15/25/30/40HP |
| YAMAHA 648-44146-00 CONNECTOR,SHIFT ROD | 20/25/30/40/50HP |
| YAMAHA 90170-12138 NUT | 25/40/48/50/55/60/70HP |
| YAMAHA 90170-16M01 NUT | 25/50/60/70/75/80/85/90/100/115/130/140/150/175/200/220/225HP |
| YAMAHA 90179-08M06 NUT | 9.9/13.5/15HP |
| YAMAHA 90179-09M02 NUT | 20/25/30HP |
| YAMAHA 90179-10M14 NUT | 20/25/30HP |
| YAMAHA 90170-06015 NUT | 9.9/13.5/15/20/25/30HP |
| YAMAHA 90170-20137 NUT | 25/40/48/50/55/60/70/75/80/85/90/100/115/130/140/150/175/200/220/225HP |
| YAMAHA 90171-10M01 NUT,CASTLE | 6/8/9.9/13.5/15HP |
| YAMAHA 90171-14013 NUT,CASTLE | 20/25/30HP |
| YAMAHA 90171-16011 / 95307-16900 NUT,CASTLE | 25/40/48/50/55/60/70/75/80/85/90HP |
| YAMAHA 90171-18M04 NUT,CASTLE | 100/115/130/140/150/175/200/220/225/240/250/300HP |
| YAMAHA 95380-06700 NUT | 4/5/6/8/9.9/13.5/15/202/25/30/40/48/50/55/60/70/75/80/85/90/150/175/200/225HP |
| YAMAHA 90185-08045 NUT, SELF-LOCKING | 25/30/40/48/50/55HP |
| YAMAHA 90185-08057 / 95780-08300 NOUT,NYLON | 3/4/5/6/8/9.9/13.5/15/20/25/30/40/48/50/55/60/70/75/80/85/90/115/150/175/200/225HP |
| YAMAHA 90185-10051 NUT, SELF-LOCKING | 5/6/8/9.9/15/20/25/30/40/48/50/55/60/70/75/80/85/90HP |
| YAMAHA 90185-12058 / 95717-12300 NUT, SELF-LOCKING | 40/48/50/55/60/70/75/80/85/90/115/130/140/150/175/200/220/225HP |
| YAMAHA 90185-12M12 / 90185-14M00 NUT, SELF-LOCKING | 40/48/50/55/60/70/75/80/85/90/115/130/140/150/175/200/220/225HP |
| YAMAHA 95380-03600 NUT | 3/6/8/9.9/13.5/15/20/25/30/40/48/50/55/60/70/75/80/85/90/100/115/130/140/150/175/200/225/240/250/300HP |
| YAMAHA 95380-06600 NUT,HEXAGON | 2/3/4/5/6/8/9.9/13.5/15/20/25/30/40/48/50/55/60/70/75/80/85/90/100/115/130/140/150/175/200/220/225/240/250/300HP |
| YAMAHA 95380-10600 ECROU | 20/25/30/40/48/50/55/60/70/75/80/85/90HP |
| YAMAHA 95380-12800 NUT, CROWN | 25/40/48/50/55/60/70/75/80/85/90HP |
| SUZUKI 09140-14008 NUT | 9.9/15HP |
| SUZUKI 23311-95DL0 BUCKLE,CLUTCH ROD TURN | 25/30/40HP |
| SUZUKI 09141-12005 NUT | 9.9/15HP |
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